"One thing I have learnt from Shane Watson is bowling round the wicket. That was the first thing I practised (with Royals) and it has helped me while bowling for India too," said the 26-year-old Kulkarni.
"My real growing was during IPL season 1 under Shaun Pollock who shared his experience so much with me and the next year when he was the coach of Mumbai Indians - the variations he had taught me, I have been practising those all these seasons and trying to perfect them," he said.
"I had just been bowling in the nets. (It was) just a bit frustrating, but I was always focused on bowling and not worrying about not getting picked. It was an honour to be part of World Cup and I was just enjoying my experience," he said.
"I am trying to improve on my pace, add that extra bit of yard in my pace. I have been working hard on my fitness and doing lot of cardio work," he added.
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"I have been working on my batting. I used to get time to bat and batted a lot in Australia and got used to those conditions.
"Bharat Arun (Indian team bowling coach) was my coach at the under 17 zonal cricket academy which was the first I attended. He knows my bowling very well and has been helping me a lot in my bowling," he explained.
Asked about who he will prefer to coach the national team, he reluctantly said "I feel (Pravin) Amre can be the coach. He's been coach for India A. He's a good coach."